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V @geiten tetra fstrnt @fge IMPROVBD VISE.

EMMTT COON, OF KALAMAZOO, MICHIGAN.

Letters Patent No. 60,144, dated December 4, 18d6.

SPECIFICATION.

To ALLWHOM IT MAY CONCERN:

Be it knownlthat I, EMMEN Coon, of Kalamazoo, in the county of Kalamazoo, and State of Michigan, have invented a new and useful improvement in Vises; and I do hereby declare that the followingis afull, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, and to the lettersof. referencemarked thereon. Like letters refer to corresponding parts in each figure.

Fivure 1 is a perspective view ofmy vise, showingv the proper arrangementof all the parts.

D i i l n Figure 2 is a view ofthe inner surface of aJaw and die.

Figure 3 is a vplan of a. die inverted.

Figure 4 represents abevelled die or blockwith a horn attached. Figure 5 represents a die or block with two bevels on the upper surface.

A, iig. `il, is lan upright standard resting on a pedestal B.` From the pedestal a slot extends upward in said standard. C represents a curved leverattached to a bolt in the slot of the standard said bolt constituting the fulcrum. The upper ends of the standard `A and lever C correspond in shape and dimensions, and' consti-h tutethe jaws of the vise.-. At the lower end of the lever C is placed the spring D, the upper end of which rests against theshort arm of the lever C below the fulcrum, and the lower endis secured'in any convenient manner to the lower end: of the standardA,-or to the pedestal B. Thesaid spring serves tolkeep the short arm of the leverD pressed` into the' slot in the standardlA, and th-us keeps the jaws 'bf the` vise open when they are not brought together, as hereinafter explained. 'y E represents an elbow friction-lever, the fulcrum of' which is on a bolt passing through ,the slot in the'standard The short arm of said lever rests against the short arm of the lever C, and the long arm projects outward, as shown in fig. l. By forcing down'the long arm of the lever E the jaws-are brought together, and when thepressure is removed the spring-D forces them apart. To the jaws. o-f the vise I attach metallic slip dies FF, on the under surface of which are bevelled keys c c, which fit into corresponding groov-es' in the jaws, forming a dovetail attachment. The grooves in which tliedies are. placed contract in breadth as they4 approach the outsideof the 4jaws. The upper surface of the dies may be constructed ofvany desirable form; and for making nails, bolts, &c., AI use dies with cavities b b, in the inner edge thereof,`5of l any desirable form or size. When the Jaws of the vise are brought 'together these cavities'forniholes, into which4 the heated iron is driven; and in this `way nails, bolts, Ste., corresponding in shape and size to said holes, are made. When itis desired, I attach a horn tothe dies, as represented at d, fig. 4. I also use the bevell'ed dies orblocks gs. 4 and 5, one being lower than the other, for the purpose of forming horse-shoe calks. Fig. 5 has an inward bevel, represented at n, making it lower than the die, iig. 4, and thus -forming arecessfor forming the calks. V

Among the advantages of having a vise constructed with detachable, or slip dies, and des.withcavities, are the following, viz

1. When the dies become battered and defaced by usage they may be dressed over very easily or replaced by new ones, whereas when the ordinary vise becomes defaced is repaired with considerable diiiculty;Y and unless made of wrought iron or steel it cannot be repaired at all, Vand thus becomes useless.

2. By means of the detachable slip dies I can have aivise of any form desired, .for any kind of work for which a vise is used, by simply having different-formed dies.

3. All the parts, except the dies and, spring of my vise, may be made of cast iron, thus reducingfthe expense, but still being as good as if all the -parts were made of wrought iron and steel, as it is only thejaws of avise that are liable to become impairedbyV usage. u i

4. By the use of dies with cavities, nails, bolts, &c., may be headed at one heating, and in about one-half the time required to do the work'by the old process of using La heading tool, which requires a number of beatings.

What I claim as new in my invention, and desire to secure by Letters Patent, is-

1. The adjustable dies F E, with cavities-b b, and keys c c, as and for the purpose set forth. p

2. The adjustable dies, figs. 4 and 5, .made with the bevel n, horn d, and keys c c, when used in combination with a. vise. y

EMMETT COGN.

Witnesses:

A. AJKNAPPEN, J. C. Birnnws. 

